Catalogue analysis

Check a whole product list at once: the data check finds missing, invalid and implausible values, and every product gets its contribution margin, margin and break-even price – with the same VAT logic as the single-product calculator.

CSV files (also from Excel)
Automatic data check
Processed in your browser

Upload your product list

CSV with one product per row. Comma, semicolon or tab separated – Excel exports work as they are.

Choose CSV fileor drop it here

Max. 5 MB and 5,000 products. The file is processed in your browser and never uploaded.

Settings for the whole catalogue

Used for every product. Optional columns that are missing in your file – or empty cells – use the defaults below.

Sales country

Sets the VAT rate and currency of the country where the sale is taxed.

VAT / GST rate

I am VAT-registeredOff for small-business exemptions: you charge no VAT, and VAT on your costs becomes a cost.

Price includes VAT

Costs below include VATApplies to purchase price, shipping, ads, returns and other costs.

Defaults for missing columns

Shipping & packaging

EUR

Advertising cost per order

EUR

Marketplace fee

+ fixed

EUR

Payment fee

+ fixed

EUR

Expected return rate

Cost per return

EUR

Other costs per order

EUR

CSV format

Only SKU, selling price and purchase price are required. Column names are recognised in English and German (e.g. “Verkaufspreis”, “EK”). Numbers may use 1,234.50 or 1.234,50; percentages are entered as 15 for 15 %.

Column	Meaning
`sku`required	Unique article number. Duplicates are reported.
`name`	Product name (optional, shown in results).
`selling_price`required	Price the customer pays – incl. or excl. VAT as set below.
`purchase_price`required	Cost of goods per unit.
`shipping_cost`	Shipping & packaging per order.
`marketplace_fee_pct`	Marketplace commission in % of the customer price (15 = 15 %).
`marketplace_fee_fixed`	Fixed marketplace fee per order.
`payment_fee_pct`	Payment provider fee in %.
`payment_fee_fixed`	Fixed payment fee per order.
`ad_cost_per_order`	Advertising cost per order.
`return_rate_pct`	Expected return rate in %.
`return_cost_per_return`	Label, handling and write-offs per return.
`other_costs`	Any other variable cost per order.
`vat_rate_pct`	VAT rate for this product, e.g. a reduced rate.
`monthly_units`	Units sold per month – enables monthly totals and ABC classes.